package zhu.yu.OOP_abstract_class.多态.USB案例;
// 鼠标类 鼠标就是一个USB设备

public class Mouse implements USB {

    @Override
    public void open() {
        System.out.println("打开鼠标");
    }

    @Override
    public void close() {
        System.out.println("关闭鼠标");
    }

    public void click() {
        System.out.println("鼠标点击");
    }
}
